{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "The 58 patients treated ( 41 men and 17 women ) had a median age of 59 years ( age range , 25 to 75 ) and a performance status of 0 through 2 ."}
{"Disease": [], "Chemical": []}